The correct curve between voltage gain $\left(A_v\right)$ and load resistance $\left(R_L\right)$ is
A
B
C
D
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C
$\text { According to }\left|A_v\right|=\frac{\mu}{1+\frac{r_p}{R_L}}$as $R$ increases $A$ also increases. When $R$ becomes too high then $A=$ maximum $=\mu$Hence only option $(c)$ is correct.
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